...That would be amazing. I already sort of think of hydras as Smaug from the Hobbit.I forsee SMP wars. Minecraft is now a first person RTS. Actually I think we could re-create Battle for Middle Earth fights like this. Oh god it would be amazing. Use the Hydra as the Mumakil maybe? I don't think MFR has Mo'Creatures support.
Also, divineRPG is nice, but I wish there was another MMORPG overhaul mod out there, with a more classic interface. Perhaps even changing the move style, making a better 3rd person camera, etc.